Answers

Subtract 48/54 from 15/20

15/20 - 48/54 is -5/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   15/20 = 15 × 27/20 × 27 = 405/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   48/54 = 48 × 10/54 × 10 = 480/540
4. Subtract the two like fractions:
   405/540 - 480/540 = 405 - 480/540 = -75/540
5. After reducing the fraction, the answer is -5/36

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